14-17. Two different training methods (call them A and B) are being tested at ACE Pharmaceuticals. Two groups of trainees have been selected randomly; one uses Method A and the other uses Method B. At the end of the training period each group is given a proficiency test to determine how well they perform a specific task. The scores are:

Method A 55 70 65 62 81 72 58 50 67 71 Method B 50 88 84 91 90 78 62 82 75 80 79 83 For α = 0.05, use the K-S method to determine if the two groups were drawn from the same population.